21809084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11527}}^1$

素因数の和:11585

約数の個数: 24

約数和(自身を含む): 42607488

約数和(自身を除く): 20798404

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11527, 23054, 46108, 126797, 253594, 495661, 507188, 991322, 1982644, 5452271, 10904542, 21809084]

約数ペア:

[(1, 21809084), (2, 10904542), (4, 5452271), (11, 1982644), (22, 991322), (43, 507188), (44, 495661), (86, 253594), (172, 126797), (473, 46108), (946, 23054), (1892, 11527)]